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Surname Yinching (Yinching ) , worldwide, is an extremely rare family name. Predominantly, Yinching is the forename as well as the last name.
Ыинхинг
So, Huang, Phang, Wong, Fung, Ling, Chen, Chau, Chan, Wai, Tam, Lee, Lai, Lam, Lau, Wu, Ho, Ng, Linchen, and Lin-Chen